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    {
      "attempts": [
        {
          "delay_ms": 0,
          "raw_error": {
            "body": "{\"error\":\"agent operation failed: read file: failed to read /workspace/dispatch-count in the workload container: open /workspace/dispatch-count: No such file or directory (os error 2)\",\"code\":\"INTERNAL_ERROR\"}",
            "status": 500
          },
          "result": "{:error, %SmolBox.Error{category: :protocol, operation: :download, exit_code: nil, evidence: :dispatch_uncertain}}"
        },
        {
          "delay_ms": 250,
          "raw_error": {
            "body": "{\"error\":\"agent operation failed: read file: failed to read /workspace/dispatch-count in the workload container: open /workspace/dispatch-count: No such file or directory (os error 2)\",\"code\":\"INTERNAL_ERROR\"}",
            "status": 500
          },
          "result": "{:error, %SmolBox.Error{category: :protocol, operation: :download, exit_code: nil, evidence: :dispatch_uncertain}}"
        },
        {
          "delay_ms": 1000,
          "raw_error": {
            "body": "{\"error\":\"agent operation failed: read file: failed to read /workspace/dispatch-count in the workload container: open /workspace/dispatch-count: No such file or directory (os error 2)\",\"code\":\"INTERNAL_ERROR\"}",
            "status": 500
          },
          "result": "{:error, %SmolBox.Error{category: :protocol, operation: :download, exit_code: nil, evidence: :dispatch_uncertain}}"
        }
      ],
      "dispatches": 1,
      "mode": "original-again",
      "name": "mac6rest-3kxfnybat6sdqotro6mq",
      "start": "running",
      "stop": "stopped"
    }
  ],
  "failure_analysis": {
    "initial_runtime": "8 of 9 passed; file missing after stop/start with 1/1 GiB requests and no resize2fs",
    "dependency_correction": "All 9 original cases passed unchanged after supplying resize2fs; explicit flush and delayed observations alone did not fix it",
    "source_evidence": [
      "v1.14.6 src/disk_utils.rs copy_disk_from_template/shrink_ext4_image",
      "v1.14.6 src/storage.rs ensure_formatted/needs_format",
      "v1.14.6 src/agent/manager.rs prepare_for_launch"
    ],
    "inference": "Failed shrinking leaves no formatted marker, while launch logs a warning and continues. A subsequent launch can copy the template again, consistent with the observed lost file.",
    "missing_dependency_worker_log_sha256": "47bab8a43c84ae9ada711d8fab2e904ec5a54e82796ee2dd1eaaaa52f278ad37",
    "walkthrough": "TCP setup failed before dispatch because unix_socket:nil fails NimbleOptions validation. Documentation now omits the option when absent; unchanged public API then completed the walkthrough."
  },
  "limitations": [
    "No Mac exhaustion or adversarial runtime cases executed",
    "No general isolation certification or hard Mac host quotas",
    "Fresh artifacts, service faults, exact candidate gates and final cleanup recorded separately when complete",
    "No release, tag, push or PR"
  ]
}